Cheetah Research at Spiers Vineyard Cape Province in South Africa.
Cheetahs are used to humans, so for a fee we are allowed in to stroke them!
The owners make sure the cheetahs have sufficient running and hunting times.

Seth4605 - These are used to humans, but they are still wild animals and as such, great care is needed in dealing with humans when we are with them. (We, the humans are the problem!) so one of their keepers is always in at the same time .
Somebody might want to pull the tail or ears etc. which the cheetah would not be happy about.